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Ganderia

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Series: GSA Special Papers
Published: 07 March 2022
DOI: 10.1130/2021.2554(08)
EISBN: 9780813795546
...ABSTRACT ABSTRACT Avalonia and Ganderia are composite microcontinental fragments in the northern Appalachian orogen likely derived from Gondwanan sources. Avalonia includes numerous Neoproterozoic magmatic arc sequences that represent protracted and episodic subduction-related magmatism before...
Series: Geological Society, London, Special Publications
Published: 13 January 2021
DOI: 10.1144/SP503-2020-23
EISBN: 9781786209917
...; RHbr Fm, Rocky Harbour Formation; SM, Sporting Mountain. Fig. 5. Tectonic model for Ediacaran–early Cambrian diachronous arc–arc collision between Ganderia, Carolinia and West Avalonia. The collision may have started in Newfoundland West Avalonia between 600 and 580 Ma ( a ) & ( b...
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Journal Article
Journal: GSA Bulletin
Published: 12 July 2018
GSA Bulletin (2018) 130 (11-12): 1918–1939.
... that has not been recognized within Ganderia in the Appalachian sector of the orogen. The central, accretionary part of the Caledonian-Appalachian orogen ( van Staal et al., 2009 ; Murphy et al., 2010 ; Nance et al., 2010 ) developed as a result of the early Paleozoic closure of the Iapetus Ocean...
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Journal Article
Published: 02 October 2014
Canadian Journal of Earth Sciences (2014) 51 (10): 943–972.
...Dawn A. Kellett; Neil Rogers; Vicki McNicoll; Andrew Kerr; Cees van Staal Abstract Devonian and younger plutonic suites of the Appalachian orogen in Newfoundland form a curvilinear belt straddling the boundary between Ganderia and Avalonia, and exhibit a general pattern of younging to the southeast...
FIGURES
Journal Article
Published: 16 May 2014
Journal of the Geological Society (2014) 171 (4): 555–569.
... zircon. These characteristics are shared with the Monian terrane of Anglesey and with Ganderia in the Appalachians, indicating probable derivation from Amazonia in West Gondwana. Silurian sandstones from the Lake District show an influx of Laurentia-derived zircon, and lack the peri-Gondwanan signal...
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Journal Article
Journal: Geology
Published: 01 November 2012
Geology (2012) 40 (11): 987–990.
... the transfer of Ganderia and Avalonia from Gondwana to Laurentia, which led to closure of the Iapetus Ocean and opening of the Rheic Ocean. Ganderia, a long-lived arc terrane, separated from the paleo-Caribbean margin of Amazonia at 505 Ma with a latitudinal speed of ∼9 cm/a northward, initiating the Rheic...
FIGURES
Series: GSA Memoirs
Published: 01 September 2010
DOI: 10.1130/2010.1206(16)
... on the leading edge of Ganderia, a peri-Gondwanan microcontinent. Although the Penobscot and Victoria stages of arc-backarc development occurred in a predominantly extensional suprasubduction-zone setting, they each display a distinctly different character of magmatism and sedimentation. These stages...
Journal Article
Journal: GSA Bulletin
Published: 01 September 2008
GSA Bulletin (2008) 120 (9-10): 1134–1158.
...Klaus J. Schulz; David B. Stewart; Robert D. Tucker; Jeffrey C. Pollock; Robert A. Ayuso Abstract The Ellsworth terrane is one of a number of fault-bounded blocks that occur along the eastern margin of Ganderia, the western-most of the peri-Gondwanan domains in the northern Appalachians that were...
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Series: GSA Special Papers
Published: 01 January 2007
DOI: 10.1130/2007.2433(14)
... and Ganderia and Avalonia in the northern Appalachians. Relationships among these three crustal blocks are important for understanding both the accretionary history of the orogen and the evolution of the Iapetus and Rheic Oceans, first-order geographic features of the Paleozoic globe. Traditionally...
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Schematic Early Palaeozoic evolution of <span class="search-highlight">Ganderia</span>. (A) Oldest part of the Pe...
Published: 30 June 2021
Fig. 9. Schematic Early Palaeozoic evolution of Ganderia. (A) Oldest part of the Penobscot arc is ca. 514 Ma. Ellsworth bimodal volcanic rocks and serpentinized mantle suggest departure of Ganderia from Amazonia in Miaolingian (509–504 Ma). (B) Continued extension of Penobscot arc, presumably due
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Plate tectonic setting for <span class="search-highlight">Ganderia</span> at ca. 615 Ma with major orogenic and c...
Published: 07 February 2019
Fig. 9. Plate tectonic setting for Ganderia at ca. 615 Ma with major orogenic and crustal provinces in the Laurentian, Baltican, Amazonian, West African, and Sao Franciscan cratons. Plate positions and modern reference latitude/longitudes are based on McCausland et al. (2011) , Pisarevsky et al
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Schematic cross sections of coastal and central Maine, modified from  van S...
Published: 25 April 2019
Figure 3. Schematic cross sections of coastal and central Maine, modified from van Staal et al. (2009) . (A) During the Early Silurian Salinic orogeny, the peri-Gondwanan Ganderia terrane docked to Laurentia. The coastal volcanic belt is on the outboard edge of Ganderia, where the oceanic crust
Series: GSA Special Papers
Published: 07 March 2022
DOI: 10.1130/2021.2554(06)
EISBN: 9780813795546
...ABSTRACT ABSTRACT Voluminous bimodal volcanic rocks of the Silurian (ca. 422–420 Ma) Dickie Cove Group in the Ganderia domain of northern New Brunswick, Canada, are subaerial units that were deposited in an extensional setting, with the mafic types corresponding to continental tholeiites...
Journal Article
Journal: GSA Bulletin
Published: 28 February 2022
GSA Bulletin (2022)
... of the Rheic Ocean at ca. 510 Ma when several Gondwana-derived terranes comprising Carolinia, Ganderia, Avalonia, and Meguma sequentially drifted from the northern margin of Gondwana and eventually collided with Laurentia or Baltica. Over the same time interval, the Laurentia-derived Cuyania terrane (a.k.a...
Series: Geological Society, London, Special Publications
Published: 13 January 2021
DOI: 10.1144/SP503-2019-229
EISBN: 9781786209917
... (+). Fig. 10. ε Nd ( t ) v. time plot comparing new Sm–Nd isotopic data of the Tobique rhyolitic rocks with basaltic rocks of Avalonia ( Keppie et al. 1997 ; Murphy et al. 2011 ) and Ganderia ( Dostal et al. 2016 ) of the Canadian Maritimes. The shaded area is the Avalonian basement and SCLM...
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Simplified geological model for the Silurian–Late Devonian tectonic evoluti...
Published: 01 November 2013
occurred to the west while Ganderia’s leading edge was in the final stages of subduction beneath Laurentia. This partially overlaps in time with the early stages of formation of the Coastal Volcanic belt on Ganderia’s trailing margin ( van Staal, 2007 ). Calc-alkaline volcanic rocks of the Dennys
Series: Geological Society, London, Special Publications
Published: 01 January 2009
DOI: 10.1144/SP327.13
EISBN: 9781862395756
... to closure of the AOB, accretion of parts of the Red Indian Lake arc and hence formation of the AAT. ( b ) Late Ordovocian Taconic 3 arc–arc collision ( Zagorevski et al. 2007 c ). Accretion of the Popelogan–Victoria arc (leading edge of Ganderia) closed the main Iapetan oceanic tract. Fig. 4...
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Journal Article
Published: 15 November 2011
Canadian Journal of Earth Sciences (2012) 49 (1): 259–288.
...Jeffrey C. Pollock; James P. Hibbard; Cees R. van Staal Abstract The eastern edge of the Appalachian orogen is composed of a collection of Neoproterozoic – early Paleozoic domains, Avalonia, Carolinia, Ganderia, Meguma, and Suwannee, which are exotic to North America. Differences in the geological...
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Neoproterozoic to middle Cambrian paleogeography of the Iapetus. The Bounda...
Published: 01 May 2014
Fig. 20 Neoproterozoic to middle Cambrian paleogeography of the Iapetus. The Boundary deposit likely formed in southern latitudes in a peri-Gondwanan setting along the edge of Ganderia, likely within a rifted arc along this margin. The location of the potential environment of the Boundary deposit
Journal Article
Published: 16 July 2018
Geological Magazine (2019) 156 (7): 1217–1232.
... assigned to the domains Ganderia and East Avalonia. The Midland Platform forms the core of East Avalonia but its provenance is poorly known. Laser ablation split-stream analysis yields information about detrital zircon provenance by providing simultaneous U–Pb and Lu–Hf data from the same ablated volume...
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